Connected my old watch to new phone

Is it possible that my Apple Watch had spyware or malware on it ? I connected it to my phone that I’ve had for over a year, a few days later . The same problems I had before I’m having again, logged out of my bank , my Wi-Fi and google act like I have a new phone? I’m very tempted to turn it over to the police . Something about the watch is causing problems it seems ?